Erm.. Me is a trancer icer. No need SPL la bro. I assume you wanna listen to it in your car and not use for demo.
Sub woofer - 4ohm, 2ohm or 1ohm stable (Brands like Kicker, IDMax (hehe), Blaupunkt Velocity, etc)
Good comp set - Alpine Type-s / r or x, get something with clarity. You won't regret this because you'll be able to hear every single instrument that way
Good comp amp - Get something clean and around 75 RMS or more power. Amps like Helix Dark Blue, Orion HCCA, A/D/S/, Genesis Profile, etc
A monoblock or a effecient amp for your sub - Must be able to go 2ohm or 1ohm stable. Like the Orion HCCA 250 (800 watts 1ohm!!) or Orion XTR are perfect for this. Or Monoblocks like Genesis Dual Mono, Tagwood, US Amps, Rockford Fosgate, etc. Any amp that can go above 500 watts is really really perfect for sub usage.
HU - I personally prefer Clarion. Clear and warm. If Trance music is too sharp it tends to sound very harsh. Trance has very minimum vocal so you don't really need brightness. My opinion anyway.
All in all?
HU - RM800+
Comp set - RM500+
Comp amp - RM1000+
Sub woofer - RM400+
Sub Amp - RM1000+
I'm assuming you already have your wiring (RCA and speaker cables)
So that adds up to be about RM3700+. If you get 2nd hand off good (reliable) ICE-r folks or get good cheap bargains from people like MNKH, Bert, Appleyard, netken, CalvinHPK, etc you probably can fit in your RM3000 budget.
:D